Bag Packaging: 12 Plastic Envelopes, 6 Colors + 3 Free Rings with Snaps, Label Card Slots and Writing Labels. Thickened and Expandable Pocket: Our plastic envelopes can to 200+ A4 documents. The is 0.4mm thick and unfolds 2cm to easily accommodate thick books and documents. The polyethylene envelope is made of high quality waterproof and dustproof PP material, which can your documents from water, moisture and dust. folders are flexible and durable to keep your important files . SNAP BUTTON CLOSURE DESIGN It is no necessary to wrap the rope repeatedly, and it is more convenient and time-saving to open and the envelop folders. The plastic envelopes not only can be used to store bills, documents, materials but also be used for storing stationery, travel materials, etc. Material: plastic colour: mixed color Package Contents: 12 x Plastic Envelopes(6 Colors) 3 x Rings Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.